Switchboard.



H. F. KRANTZ. SWITCHBORD. APmlcArloN msu SEPT. 27. 191 1.

Patented Feb. 22, i916.

WITNESSES:

State of New York,

UNITED sTATne.

HUBERT F. KRANTZ, F NEW YORK, N. Y.,

" .fil-XTENT OFFICE.

ASSIGNQR TO H. F. KRANTZ MANUFAC- TURING COMPANY, OF BROOKLYN, NEW YORK, .A CORPQRATION OF NEW YORK.

Specification of Letters Patent.

Application filed September 27, 1911. Serial No. 651,565.

T 0 all "whom t may concern:

Be it known that I, HUBERT F. KRANTZ, a citizen of the United States, residing at Brooklyn, in the count-y of Kings, city and have invented certain new and useful Improvements in Switchboards, of which the following is a clear,

- joints and thus improve the full, and exact description.

The object of this invention is to improve the construction of switch boards and the like, to simplify the connections, reduce efliciency of the board.

Another object is to provide a compact and inexpensive switchboard in which a maximum clearance is provided between conducting portions of unlike polarity.

In carrying out the invention, my switch board is adapted to make immediate contact between the switch plates and the bus bars, which supply current to the board. I am thus enabled to greatly reduce the cost of a switch board as well as to reduce the number of connections necessary for the installing wire man, and so prevent disasters if the work is not properly installed.

In carrying out my invention, I provide an insulating slate back plate and run the bus bars in a plane extending vertically parallel with one face of the same, connecting them with a. source of power in the ordinary way. The various circuits to be supplied are led` to the board by conductors, and not byv struction, particularly when the blade or brush is mounted in line with a bus bar, although in all cases this might not be necessary. Fuses or the like may be carried by the insulating block between the lug and the switch blade or brush.

The scope of my invention will be pointed out in the claims.

vIn the accompanying drawings: Figure 1 is a face elevation. of a portion of 'a switch board, sufficient to illustrate my invention in connection with two switches. Fig. 2 is a section cut by plane N in Fig. 3.

Fig. 3 is a perspective of the arrangement shown by Figs. l and 2 diagrammatically exemplifying the various primary planes of this arrangement and the relation of the various elements thereto. The peculiar relation between the primary elements of this combination, as shown in Fig. l, may be more easily analyzed by reference to Fig. 3 which shows the same structure in perspective. The disposition of these elements will be explained in conjunction with what may be regarded as the three primary planes of the combination. These are indicated by B, I and N; B being a plane common to the positive and negative bus-bars indicated by and respectively, and extending parallel with the base-board l. N is a plane arranged transversely to plane B and containing and defined by the longitudinal axis of the negative bus-bar -3 said bus-bar being elongated and extending adjacent to and parallel with a face of the base-board 1. This plane N also contains theseveral negative switch-blades -S and -S, etc., and also contain certain auxiliary parts. Just as the plane N defines the various negative elements of the switch-board, so also in like manner the adjacent parallel plane P defines the position of the various positive elements. That vis to say, plane P longitudinally intersects the elongated bus-bar and extends parallel with plane N and transversely to the plane B common to the bus-bars of different polarities. The plane P contains the various positive switchblades +S and +S', and also certain other parts as will be described. It is to be noted that the negative switch-blades -S and -S are all arranged 'n alinement in endwise succession; e., tandexnwise, and they swing or move in the plane N and are spaced apart endwise so that their appropriate ends may swing directly into contact with the negative bus-bar. A similar relation obtains with respect to the positive switch-blades and, furthermore, it is to be noted that the positive and negative switch-blades are also disposed so as to, lie in alinement in pairs; z. e., the switches -S and +S form the advance pair and the switches -S and +S forming the following pair; it being noted that the members of each pair or set diler RFllSS U El.)

Patented Feb. 22, 1916.

io s

.of the scope of the invention which as a nal-piece 45.

positive and 'other planes; a

matter of language might be said to fall therebetween.

. I claim as my invention:

1. A panel-board combining a board of insulating material; a positive and a negative bus-bar arranged parallel to each other and in a first plane parallel with said board; a first and a second positive terminal-piece located in a second plane containing said positive bus-bar and perpendicular to said board; a third and a fourth negative termilocated in a parallel third plane containing said' negative bus-bar; the: first third negative terminal-pieces being in a fourth plane transverse to said first and a second positive switch-blade arranged tandem-wise in the second plane; a third and a fourth negative switch' blade arranged tandem-wise in said third plane; and means for causing said switch-blades to move in their respective planes into contact with their respective busbars.

2. A panel-board combining a board of insulating material; a series of parallel busbars all arranged in the same plane and located adjacentvone side of said board; a part located at one side of the plane of said bars;

a series of laminated resilient switch-.blades sidewise and located at one side l spaced apart of said board and supported by said part and each extending parallel with its respective bar at the same side of said board; means for moving said switch-blades in planes parallel with the longitudinal axes of said bus-bars to cause them to press endwise against said bus-bars; and means es tablishing connections between said switchblades and branch-line circuits.

3. A panel board combining a board of insulating material; an elongated bus-bar mounted to extend along one face of said board; a series of switch-blades mounted in endwise succession adjacent said bus-bar and all arranged in alinement, said bus-bar and said succession of switch-blades being all positioned in a common plane arranged transversely to said board; actuating means for bringing one end of each of said switchblades directly into contact with said busbar; a series of branch-line circuits; a number of'y nsulating supports extending transversely of said bus-bars; and a serles of connecting elements mounted on said supports also located in said plane establishing electrical connection between said circuit and said switch-blade, all of said corresponding elements being identically located and arranged with relation to Said bus-bar.

4. A panel-board combining a first strip of insulating material; a second strip of insulating-material spaced therefrom and extending parallel therewith; a Vbase-board located in a different plane from that com mon to the two strips; a series of branchline terminals of different polarities spaced along said first strip; a series of parallel elongated bus-bars of different polarities extending transversely to said strips, said bus- 1 bars being spaced apart in correspondence transversely thereto; a branch line terminalggzi located on the rearward face of each strip adjacent its intersection with each bus-bar; and a plurality of switch-blades movable in planes transverse both to said above-mentioned plane and to said strips and parallel with said bus-bars and adapted to contact directly with said bus-bars.

6. A panel-board combining a number of spaced parallel lstrips of insulating material; a first positive bus-bar extending transversely to said strips at one side thereof; a positive fuse arranged on the other side of each strip; all of said positive fuses being located in a plane longitudinally containing said first bus-bar; a. second negative bus-bar parallel with the first; a negative fuse on the other side of each strip, all of said negative fuses being located in a Vplane parallel to said first plane; switches movable in saidl planes to establish electrical connection between each fuse and its nearest bus-bar; and branch-circuits connected with each fuse.

7. A panel-board combining a boardl of insulating material; a bus-bar located at one connection with said bus-bar; a toggle op-V erativelv connected with said switch to maintain said electrical connection when said toggle is unbroken; and to interrupt said connection when said toggle is broken; and a manually-operated handle located adjacent the other side of said board for opera-ting sald.vv

.- toggle.

-and means timing a h flexed state 8. il panel-boerd combining a boardof iiisuleting material; en elongated bus-har located at one side thereof; a resilient" switchblade arranged adjacent said hus-b'arand in e. plane parallel therewith; a. toggle adepted in its dead-center position to dei; said blade directly means for operating said toggle.

9. A penellioa combininge board oil' insulating materiel; e bus-bar .located at one side thereof; a `resilient switch-blade adapted to be moved in airplane containing; said bus-bar to establish electrical connecti on with said bus-loer; a toggle connected to actnate said switch-blade and adapted when unbroken tohold seid resilient blade in a to maintain said electrical connection and adapted to release said blade to interrupt said connection when broken; and means for operatingn said toggle.

l0. A sWi'tcli-l' oard combining;r ay stationary elongated contact-piece; two laminatedy resilient switchfbledes arranged tandem; parts for supporting seid switch-blades; a toggle connected to actuate each switch-blade, each toevle when unbroken .beinen erraned; toY

el@ t hold its switclrhlade in a flexed state with its end pressed irmlyagainst said common contact-piece, said toggle adapted when broken to rele-ase its strain onseid jlilade;

for actuatingr said toggle.

ll. in electrical. switch rd of insulating meterialg' is-bar locatel one thereentending in the direction the 'plane thereof adapted to he noot/'ed to establish electrical connection with seid hns-har; e toggle connected with said switch-blade to inaiiitein seid electrical. conn-A I "einen i'l toggle is nir liroken'end to interrupt s elongga te d A connection when said toggle is broken; and inane.alljgfeoov @rated handle located adjacent the other side .ol said board for operating toggle.

,movable into contact into contact with said busebar; and

said toggle is Amechanism coin- 12. in electrical switch inechan s, bining a' contactipiece; support mein lier; e laminated' resilient` switch-blade mounted adjacenty said contact-piecefto be. therewith g lever-arm pivoted to said member and constitutinfiV the shorter leo; of a` toggle; a linlrconnected to operate said switch-blinde and pivoted to said arm to constitute the a gie', the proportions ot' said parte being such that seid blade will he flexed tiri ly against said piece when the link crosses the axis of the pivot of the arm on'said member.

13. A panel-board combining a board of insulating1 material; an elongated bus-bar located at one side thereof; e siifitch`-blade having-a `beveled yend adapted to be moreel to establish electrical connection 'Witlrsaid bus-bar; a toggle connected yto .actuate seid s-iif'itch-hlade to swing* its beveled end 'into a position establishing' anelectricel connection when. said toggle is unbroken, and to int-er rupt seid connection when said toggle is broken; and a manuallyoperated handle lo cated adjacent the other side or seid board for operating; said toggle. lei. fin electrical switch mechanism vcoin.- bining a. contactpiece; a stationary support ingin einher v lilade secured fast to and normallyv projectingvv therefroinfto terminate clear of said contact-piece; anda tog;um gie connected to actuate said yswitch-lblade id adaptedwhen moved into'its deedeenier position, to bend said resilient blade into endwise Contact with said. contacteioiece.

longer leg ofthe tog- Signed :it Brooklyn in the connty-ot' lifinge e laminated resilient switchseid stationary part` 

